JAN 21, 2013 – Yesterday, the day before the Presidential Inauguration, Sasha and Malia Obama rocked out with kids from military families, Katy Perry and Usher. The first lady Michelle Obama has been working hard to make sure the military families get the thanks and help they need and deserve. The concert was beamed to military bases around the country so military kids across the America could take part. Read more on Huff Po here.